Input-output norms require importers to match gum base composition to declared export use and ensure proportion compliance.

Standard input-output norms prescribe the composition and permissible proportions of components in Gum Base for Liquid Filled Gum (Vivisoft) and require applicants to ensure imported goods correspond to those used or required in the declared export product; the schedule governs determination of input proportions usable or required in manufacture.

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